Safety envelope



Patented Aug. 12, 1924.

UNITED STATES JOHN POZIOMEK, OF TARENTUM, PENNSYLVANIA.

SAFETY ENVELOPE.

Application filed. December To all whom it may concern:

Be it known that I, JOHN PozIoMEK, a citizen of Poland, residing at Tarent-um, county of Allegheny, and State of Pennsylvania, have invented certain new and useful Improvements in Safety Envelopes, of which the following is a specification.

The present invention relates to improve ments in envelopes, and it is the principal object of the invention to provide a safety envelope, which will be secured against accidental opening, and which cannot be sur reptitiously opened Without detection and this will have the effect of deterring persons from opening the envelope.

With these ends in view the invention consists in the novel construction, arrangement, and adaptation of parts, which will be hereinafter more fully described and claimed.

In the accompanying drawing, forming a material part of this disclosure:

Figure 1 represents the blank from which the envelope is constructed according to the present invention.

Figure 2 is a section through the folded envelope on line 22 of Figure 3, and

Figure 3 is a rear view of the folded envelope.

The blank from which the envelope is formed comprises a front part 10, an upper flap 11 and a lower closing flap 12, adapted to be folded upon part 10 along the creases or lines 13 and 14 respectively.

The blank furthermore comprises end flaps 15 and 16 respectively, the flap 16 of which is provided with a transversal elongated slot 17, while flaps 11 and 12 each have similar slots 18 and 19 respectively, for instance three in each flap.

Within the envelope a piece of paste board or the like 20 is located between part 10 and flap 11, and the flap 15 has integral therewith an elongated end strip 21 which is adapted to be guided through the superposed slots 19' and 18 in folded flaps 11 and 12 and through slot 22 in card board 20 from the top. The strip 21 is furthermore guided along the rear face of the card board and through slot 23 of the same again to the top and then through the superposed registering slots 18 and 19 of flaps 11 and 12 to the rear of the envelope, and through the superposed registering slots 19 and 18 and the slots 17 in flap 16 from the rear thereof towards the front, whereupon flap 16 and strip 21 are folded upon the rear of flap 12, and strip 21 is guided Serial No. 605,218.

through .slots 19, 18 into the envelope, and then out again through slots 18 and 19 to the outer rear face of flap 12 upon which it is folded and sealed or otherwise attached to the same, as indicated at 24, Figure '3.

A separate strip 25 is placed with its end upon card board stiffener as illustrated in Figure 2, and then guided along the stiffener 20 and through slot 28 and a slot 26 in the end edge connection between flap 15 and front 10, over strip 21 and is then guided along the rear face of the envelope towards the front of the same to which it is fastened as indicated at 27, in any convenient manner.

It will be clear that the ends of strip 21 and 25 may be gummed in the ordinary well known manner in order to facilitate their fastening to the rear or front parts of the envelope respectively.

It will be clear that changes may be made in the construction of the minor details of my invention, without deviating from the scope and spirit of my invention.

What I claim as new, and desire to secure by Letters Patent of the United States is 1. A safety envelope comprising a front part, a plurality of slotted flaps adapted to be folded upon said front part, a stiffener, means integral with one of said flaps and adapted to be successively passed through the slots in said flaps, and separate means engaging said stiffener for covering said first named means.

2. A safety envelope comprising a front part, side flaps each having a plurality of elongated transverse slots, a slotted stiffener upon which said side flaps are adapted to be folded and end flaps, one having a transversal elongated slot, an elongated strip integral with the other of said end flaps and adapted to be successively passed through the slots in said side flaps, in said stiffener and in said slotted end flap, and to be bent upon the rear of the envelope, guided through the slots of the closing flap and to be sealed to said last named flap, and means for covering said strip.

3. A safety envelope comprising a front part, a stiffener, a plurality of side and end flaps adapted to be folded upon said front part along creases, one of said end flaps slotted at its point of union with said front part, a longitudinal strip adapted to be successively guided through the several flaps and stiffener, and to be sealed against the rear face of the closing flap, and a strip attached. at. oneend to said stiffener and guided? through the. slot insaid end flap, to cover the first named strip and to be sealed at its end to the front part of the envelope.

4:. A safety envelope comprising a. front part, a slotted stiffener for said front part, a pair of slotted side flapsadapted tobe-folded upon said stiffener and front part, one of said flaps-constituting a elosingjfl'ap, an end flap, a longitudinal striphaving a pointed end, attaehedi withits other end to said. end

- flap,,andta:.slot-ted end flap, said'strip-adapted to bepassed through; the slots in said JOHN POZIOMEK. 

